... . compact, small and light. 4. smooth running, low noise. 1. Cylinder gear speed reducer widely use in the industries of cement ... printing and so on. 2. Operating temperature: -40 degree celsius ~ +45 degree celsius. 3. Before startup, lubricant oil must be preheated ... structure types, such as ZDY single stage cylinder gear speed reducer , ZLY double stage cylinder gear speed reducer and ZSY three stage ...